first commit

.gitignore

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+node_modules

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2015 Mathias Buus
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

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+# stream-each
+
+Iterate all the data in a stream
+
+```
+npm install stream-each
+```
+
+## Usage
+
+``` js
+var each = require('stream-each')
+
+each(stream, function (data, next) {
+  console.log('data from stream', data)
+  // when ready to consume next chunk
+  next()
+})
+```
+
+## API
+
+#### `each(stream, iterator)`
+
+Iterate the data in the stream by calling the iterator function with `(data, next)`
+where data is a data chunk and next is a callback. Call next when you are ready to
+consume the next chunk. Optionally you can call next with an error to destroy the stream
+
+## License
+
+MIT

index.js

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+module.exports = each
+
+function each (stream, fn) {
+  var want = false
+
+  stream.on('readable', function () {
+    if (want) loop(null)
+  })
+  loop(null)
+
+  return stream
+
+  function loop (err) {
+    if (err) return stream.destroy(err)
+    var data = stream.read()
+    if (!data) {
+      want = true
+    } else {
+      want = false
+      fn(data, loop)
+    }
+  }
+}

package.json

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+{
+  "name": "stream-each",
+  "version": "0.0.0",
+  "description": "Iterate all the data in a stream",
+  "main": "index.js",
+  "dependencies": {},
+  "devDependencies": {
+    "tape": "^4.2.1",
+    "through2": "^2.0.0"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/mafintosh/stream-each.git"
+  },
+  "author": "Mathias Buus (@mafintosh)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/mafintosh/stream-each/issues"
+  },
+  "homepage": "https://github.com/mafintosh/stream-each"
+}

test.js

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+var tape = require('tape')
+var through = require('through2')
+var each = require('./')
+
+tape('each', function (t) {
+  var s = through.obj()
+  s.write('a')
+  s.write('b')
+  s.write('c')
+  s.end()
+
+  s.on('end', function () {
+    t.end()
+  })
+
+  var expected = ['a', 'b', 'c']
+  each(s, function (data, next) {
+    t.same(data, expected.shift())
+    next()
+  })
+})
+
+tape('each (write after)', function (t) {
+  var s = through.obj()
+  s.on('end', function () {
+    t.end()
+  })
+
+  var expected = ['a', 'b', 'c']
+  each(s, function (data, next) {
+    t.same(data, expected.shift())
+    next()
+  })
+
+  setTimeout(function () {
+    s.write('a')
+    s.write('b')
+    s.write('c')
+    s.end()
+  }, 100)
+})
+
+tape('each error', function (t) {
+  var s = through.obj()
+  s.write('hello')
+  s.on('error', function (err) {
+    t.same(err.message, 'stop')
+    t.end()
+  })
+
+  each(s, function (data, next) {
+    next(new Error('stop'))
+  })
+})